WO2013081941A1 - Affectation directe de dispositifs - Google Patents

Affectation directe de dispositifs Download PDF

Info

Publication number
WO2013081941A1
WO2013081941A1 PCT/US2012/066354 US2012066354W WO2013081941A1 WO 2013081941 A1 WO2013081941 A1 WO 2013081941A1 US 2012066354 W US2012066354 W US 2012066354W WO 2013081941 A1 WO2013081941 A1 WO 2013081941A1
Authority
WO
WIPO (PCT)
Prior art keywords
iommu
memory
computing system
configuring
guest
Prior art date
Application number
PCT/US2012/066354
Other languages
English (en)
Inventor
Andrew Kegel
Mark Hummel
Original Assignee
Advanced Micro Devices, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Micro Devices, Inc. filed Critical Advanced Micro Devices, Inc.
Publication of WO2013081941A1 publication Critical patent/WO2013081941A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1081—Address translation for peripheral access to main memory, e.g. direct memory access [DMA]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/15—Use in a specific computing environment
    • G06F2212/151—Emulated environment, e.g. virtual machine
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0058—Bus-related hardware virtualisation

Abstract

Un système est mis en oeuvre pour configurer une unité de gestion de mémoire d'entrée/sortie (IOMMU) pour fournir à au moins un dispositif/périphérique d'entrée/sortie (I/O) un accès direct à des données de la mémoire système. En outre la IOMMU est configurée pour transférer un pointeur à au moins un dispositif I/O sans avoir à traduire le pointeur. En outre, des instructions de commande sont envoyées, à partir d'un processus dans un système d'exploitation (OS) hôte, directement à un périphérique, sans intervention d'un hyperviseur. Enfin, la IOMMU est configurée pour accorder aux périphériques des autorisations d'accès à des blocs de mémoire de façon à maintenir l'isolement entre périphériques.
PCT/US2012/066354 2011-12-02 2012-11-21 Affectation directe de dispositifs WO2013081941A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/309,738 US20130145051A1 (en) 2011-12-02 2011-12-02 Direct Device Assignment
US13/309,738 2011-12-02

Publications (1)

Publication Number Publication Date
WO2013081941A1 true WO2013081941A1 (fr) 2013-06-06

Family

ID=47436180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/066354 WO2013081941A1 (fr) 2011-12-02 2012-11-21 Affectation directe de dispositifs

Country Status (2)

Country Link
US (1) US20130145051A1 (fr)
WO (1) WO2013081941A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9898227B2 (en) 2016-04-27 2018-02-20 International Business Machines Corporation Synchronous input/output virtualization

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9319254B2 (en) * 2012-08-03 2016-04-19 Ati Technologies Ulc Methods and systems for processing network messages in an accelerated processing device
US9183399B2 (en) * 2013-02-14 2015-11-10 International Business Machines Corporation Instruction set architecture with secure clear instructions for protecting processing unit architected state information
US9015374B2 (en) 2013-07-09 2015-04-21 Advanced Micro Devices, Inc. Virtual interrupt filter
US10241817B2 (en) 2014-11-25 2019-03-26 Red Hat Israel, Ltd. Paravirtualized access for device assignment by bar extension
US9720846B2 (en) 2015-05-28 2017-08-01 Red Hat Israel, Ltd. Memory swap for direct memory access by a device assigned to a guest operating system
US9772962B2 (en) 2015-05-28 2017-09-26 Red Hat Israel, Ltd. Memory sharing for direct memory access by a device assigned to a guest operating system
US10073710B2 (en) 2016-02-25 2018-09-11 Red Hat Israel, Ltd. Host-driven application memory protection for virtual machines
US10120709B2 (en) 2016-02-29 2018-11-06 Red Hat Israel, Ltd. Guest initiated atomic instructions for shared memory page host copy on write
US10228981B2 (en) * 2017-05-02 2019-03-12 Intel Corporation High-performance input-output devices supporting scalable virtualization
US11698866B2 (en) 2017-12-29 2023-07-11 Intel Corporation Unified address translation for virtualization of input/output devices
US10761996B2 (en) * 2018-09-28 2020-09-01 Intel Corporation Apparatus and method for secure memory access using trust domains
US11379374B2 (en) 2019-02-12 2022-07-05 Samsung Electronics Co., Ltd. Systems and methods for streaming storage device content
US11494211B2 (en) * 2019-04-22 2022-11-08 Advanced Micro Devices, Inc. Domain identifier and device identifier translation by an input-output memory management unit
US20200387326A1 (en) * 2019-06-10 2020-12-10 Advanced Micro Devices, Inc. Guest Operating System Buffer and Log Accesses by an Input-Output Memory Management Unit
US11042495B2 (en) * 2019-09-20 2021-06-22 Advanced Micro Devices, Inc. Providing interrupts from an input-output memory management unit to guest operating systems
US11550941B2 (en) * 2020-04-30 2023-01-10 Red Hat, Inc. Secure modular devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100161847A1 (en) * 2008-12-18 2010-06-24 Solarflare Communications, Inc. Virtualised interface functions
US7809923B2 (en) * 2006-01-17 2010-10-05 Globalfoundries Inc. Direct memory access (DMA) address translation in an input/output memory management unit (IOMMU)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548999B2 (en) * 2006-01-17 2009-06-16 Advanced Micro Devices, Inc. Chained hybrid input/output memory management unit
US7983257B2 (en) * 2008-07-18 2011-07-19 Emulex Design & Manufacturing Corporation Hardware switch for hypervisors and blade servers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7809923B2 (en) * 2006-01-17 2010-10-05 Globalfoundries Inc. Direct memory access (DMA) address translation in an input/output memory management unit (IOMMU)
US20100161847A1 (en) * 2008-12-18 2010-06-24 Solarflare Communications, Inc. Virtualised interface functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9898227B2 (en) 2016-04-27 2018-02-20 International Business Machines Corporation Synchronous input/output virtualization

Also Published As

Publication number Publication date
US20130145051A1 (en) 2013-06-06

Similar Documents

Publication Publication Date Title
US8719464B2 (en) Efficient memory and resource management
US20130145055A1 (en) Peripheral Memory Management
US20130145051A1 (en) Direct Device Assignment
US9606936B2 (en) Generalized control registers
US10963281B2 (en) Nested virtualization for virtual machine exits
US20230161615A1 (en) Techniques for virtual machine transfer and resource management
US20120246381A1 (en) Input Output Memory Management Unit (IOMMU) Two-Layer Addressing
JP6110946B2 (ja) ゲスト仮想マシン内の仮想入出力メモリ管理ユニット
US8578129B2 (en) Infrastructure support for accelerated processing device memory paging without operating system integration
US6880022B1 (en) Transparent memory address remapping
US20130262736A1 (en) Memory types for caching policies
US20050114555A1 (en) Memory mapped Input/Output operations
JP2007183952A (ja) ゲストがメモリ変換されたデバイスにアクセスする方法及び装置
US11550722B2 (en) Method, system, and apparatus for supporting multiple address spaces to facilitate data movement
US20230418762A1 (en) Unified address translation for virtualization of input/output devices

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12806744

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12806744

Country of ref document: EP

Kind code of ref document: A1